Hebrews 5:9-12

9After he was perfected, he became the source of eternal salvation for all who obey him,

10and he was declared by God a high priest according to the order of Melchizedek.

11We have a great deal to say about this, and it is difficult to explain, since you have become too lazy to understand.

12Although by this time you ought to be teachers, you need someone to teach you the basic principles of God’s revelation again. You need milk, not solid food.